Ophthalmic mounting



May 15, 1923.

G. L. TU LLY ET AL OPHTHALMI C MOUNTING Filed April 24, 1922 mvENTdR GEORGE L. TULLY WILL/AM H. BOUTELLE ATTORNEYS Patented May 15, 1923.

I E S A E enoiaen LL'TULLlY, or SoU HB iInGE, nn WILIIQIQMIHQBOIITELIQE, ors nitBnrnG MASSACHUSETTS, ASSIGNORS TOAMERICANOPTJICAL c'oMrAn orsouTHr rne'E,

MA SACHUS TTS, AjvoL nTAiW A SocI'ATI'oN or MASsAcrruSETT 4 OPHTHALMIC MOUNTING.

. Application-filed April24, 1922. SeriaI No. 556,158. 1 I

To alZ'whomz't may concern: w A 'Be it known that we, GEORGE L. TULLY and 'WILLIAM HzBon'rnLmiycitizens' of the United States, residing at Southbridge and 6 Sturbridge, respectively, inthe county of -Worcester and State of Massachusetts, have invented certain new and useful Improyements in Ophthalmic Mountings, of who the following is a specification. Z J

This invention relates. to improvements in ophthalmic mountings and .has' particular reference to mountings of the spectacle type.

One of the principalobj ects of the present invention is the provision of a mounting of this character in which the temple shall be most} securely held and possibility of acc dental loosening of SBIIlBjIQClUCGQIO- a mini- A further object of the present invention is the provision of'a .novel'and improved structure which shall embody means for "locking the retaining'devicein' desired adjusted position. r I

A further object of the invention is the provisionof astructure in which the temple retaining member may be made entirely invisible if desired. v

Other objects and advantages of our 1mprovement should bereadily apparent by reference to the following specification taken in connection with the accompanying drawings, and it will be understood that we may make any modifications in the speclfic'details of construction shown and described within the scope of the appended claims without departing from or exceeding the spirit of the invention.

Figure I is a front view of a mountlng embodying our improvements. I

Figure II is an enlarged fragmentary View particularly illustrating the end plece appearance.

Figure III is a sectional view taken as on the line IIIIII of Figure II.

Figure IV is a similar sectional view 1llustrating a modified form of fastening device. Figure V is a sectional view as on the line VV of Figure IV.

Figure VI is a View similar to Figure III 50 illustrating an exposed form of temple fastening member. I

Figure VII is a similar view illustratlng the manner of adjustment of a slightly modified form.

".VIII is a sectional view illustrating the .use of a cap member. I .Figure IX is a planview of thesec'uring screw employed'in connection with said cap member. V

In the drawings, the numeral 1 designates a spectaclebridge'having securedto each end a'lens encirclingrim or frame member 2, said members being provided with the end p1eces13 between which are pivotally secured the temples 4c for retaining the'mounting in position on the face.

-Num'erous methods have been adopted i the past of securing the templest in position, some of whichdepend ontheclamp- "ing action of a single end'piece connecting screw generally similar to the screw!) here illustrated, while others" have made use of have been subject, however, to considerable difficulty in use, sm'cewhen a single screw a separate clam-ping screw.- Both of these tend to bend or springaapart allowing the temple to become entirely; slack, while with the use of a separate fastening device the pivotal movement of the temple has caused the same to work loose. It is, therefore, the purpose of our invention to eliminate these difiiculties. This we accomplish in the form shown in Figures II and III by employing the temple retaining pivot screw member 6 having the frustro conical head 7 provided with the serrations as at 8,, while the end piece is formed with a countersunk or blind socket as at 9 also in teriorly serrated and interlocking with the serrationsB to lock the screw against any loosening. This permits the separation of the twoend piece members and the tightening of the screw 6 to securely clamp and hold the temple 4, after which the cap formingend piece 3 is placed in position and the screw 5 tightened, thus drawing the wall of,

the screw only and does not, therefore, tend to spring loose or separate the end piece ears.

Figure IV illustrates a slight modification of this construction, in which a screw head 10 of hexagonal shapein cross section,

as shown in Figure V, is employed, in place of the frustro-conioal serrated One, the socket being correspondingly stamped out. The distinction here is that the adjustment of the screw in this 'case for proper fitting must,

be one-sixth of a turn, so that the hex head will fit in its proper position in the hexagonal socket. I

Figure VI illustrates a slight modification of the structure of Figure III, in that instead of a blind socket an open top socket 9 is employed so that the screw head 7 is as is necessary exposed. This hasthe advantage that upon loosening, of the screw 5 the end piece may be opened up to disengage the serrations when the temple screw may be loosened or tightened as desired and the screw again tightened without separation of the parts, with the form shown in Fig ure III.

In Figure VII we similarly make use of this. principle, with the exception that, in this form the hexagonal jheaded screw 10 is made use of and the socket is hexagonal ,at'its top to fit the screw head, the lower part .being bor'ed out as ;at 11 of sufficient size to permit free rotation of the head for plate 15 is employed having on its under side a lug or projection 16 for selective en gagement in any one of the notches 13. This cap plate is held in place 'by the shoulder as at 17 on the screw 5, a recess 18 being formed in the face of the end piece ear to receive the cap so that the cap serves a on tightening ofthe screw 5 both as aflock for the screw 6 and also to conceal the head of the same.

We claim:

1. In .a device iodithe character described,

the combination with an end piece, of a temple, means for pivoting the temple .to the end piece, .a cap member interlocking with the pivot, and means for detachably tion.

securing the cap member'in interlocked posi- 2. The'combination with an end piece havk ing a temple receiving recess, of axtemple fitting within the recess, a rotatable pivot carried by the end piece and securing the temple within the recess, a cap member hav- '1! ing portions interlocking with the pivot to prevent rotation-thereof, and Ineans for securing the cap .member lnxoperatlve posii 3. In a device of the character-described,

the combination with a pair of end pieces and a temple, of .a pivot, fo-rconnecting the temple and end pieces, said pivot having threaded engagement with one of the vend pieces: and'the other of the endp-ieces having meansinterlocking with the pivot tosecure it in desired ,rotatively adjusted position.

GEORGE L; TULLY.-

IVILLIAM HLBOUTELLE, 

